Brazilian

Brazilian copper rutilated quartz 1.937ct loose stone Sale price¥8,800

Brazilian copper rutilated quartz 1.381ct loose stone Sale price¥8,800

Brazilian copper rutilated quartz 1.262ct loose stone Sale price¥8,800

Brazilian copper rutilated quartz 1.991ct loose stone Sale price¥6,980

Brazilian copper rutilated quartz 1.610ct loose stone Sale price¥8,800

Brazilian copper rutilated quartz 2.101ct loose stone Sale price¥8,800

Brazilian copper rutilated quartz 1.465ct loose stone Sale price¥8,800

Brazilian rutilated quartz (rutilated quartz) 7.8mm/1.406ct loose stone Sale price¥9,800

Brazilian rutilated quartz (rutilated quartz) 8.1mm/1.482ct loose stone Sale price¥9,800

Brazilian rutilated quartz (rutilated quartz) 8.2mm/2.090ct loose stone Sale price¥9,800

Brazilian Paraiba Tourmaline 0.360ct Loose GIA Sale price¥298,000

Brazilian Green Tourmaline 0.825ct Loose Stone Sale price¥9,800

Brazilian Green Tourmaline 0.376ct Loose Stone Sale price¥9,800

Brazilian Green Tourmaline 0.332ct Loose Stone Sale price¥9,800

ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 0.344ctルース

Brazilian Tinkerbell Quartz (Pink Fire Quartz) 0.344ct Loose Stone Sale price¥12,800

非加熱ブラジル産パライバトルマリン 0.060ctルース（CuO:1.6%、MnO:2.3%）

Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%) Sale price¥45,800

非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.7%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥49,800

Brazilian Amethyst 9.749ct Loose Stone Sale price¥15,800

Brazilian Imperial Topaz 0.744ct Loose Stone Sale price¥12,800

【KEN氏】ブラジル産グリーントルマリン 5.2mm/0.584ctルース（セミオーダーメイドセット）

[Staff Selection] [Mr. KEN] Brazilian Green Tourmaline 5.2mm/0.584ct Loose Stone (Semi-Custom Made Set) Sale price¥47,800

Brazilian Indigolite Tourmaline 7.002ct Loose Stone, Japan-Germany Exchange Sale price¥198,000

Brazilian alexandrite 0.116ct loose Sale price¥15,800

Unheated Brazilian Paraiba Tourmaline 0.072ct loose stone (CuO: 1.8%, MnO: 2.3%) Sale price¥49,800

Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 2.1%, MnO: 2.1%) Sale price¥65,800

Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:2.0%, MnO:2.2%) Sale price¥39,800

非加熱ブラジル産パライバトルマリン 0.051ctルース（CuO:1.9%、MnO:2.5%）

0.051ct loose Brazilian Paraiba Tourmaline (CuO: 1.9%, MnO: 2.5%) Sale price¥39,800

Brazilian Pink Tourmaline 0.862ct Loose Stone Sale price¥15,800

Brazilian Blue Tourmaline 0.196ct Loose Sale price¥8,800

Brazilian Green Tourmaline 2.218ct Loose Sale price¥29,800

Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone Sale price¥19,800

Brazilian Paraiba Tourmaline 0.341ct loose stone (CuO:1.81%, MnO:1.96%) Nakahokan analysis report Sale price¥598,000

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥75,800

Unheated Brazilian Paraiba Tourmaline 0.088ct loose stone (CuO: 1.9%, MnO: 2.3%) Sale price¥72,800

Morganite 0.379ct loose stone Sale price¥8,800

Brazilian rutilated quartz (rutile/rutile quartz (rutilated quartz)) 1 loose stone (6.0-6.5mm, for beginners) {Multiple purchase discounts available} Sale price¥2,580

Brazilian Paraiba tourmaline in quartz 0.871ct loose Sale price¥18,800

Brazilian Imperial Topaz 0.746ct Loose Sale price¥18,800

ブラジル産アレキサンドライト・ムーンストーン2石セット（6月誕生石セット）《複数購入割引有》

《Limited to 32 stones》 Brazilian Alexandrite Moonstone 2 stone set (June birthstone set)《Multiple purchase discount available》 Sale price¥3,980

[Limited to 9 stones] Brazilian green quartz 1 stone loose (10mm) [Multiple purchase discount available] Sale price¥3,980

《Limited to 6 stones》 1 stone loose green quartz from Brazil (8mm, concave cut) 《Discount available for multiple purchases》 Sale price¥3,980

Brazilian dumortierite in quartz 0.731ct loose Sale price¥8,800

Brazilian dumortierite in quartz 0.496ct loose Sale price¥6,580

Brazilian dumortierite in quartz 0.506ct loose Sale price¥7,980

Brazilian dumortierite in quartz 0.309ct loose Sale price¥4,980

Brazilian dumortierite in quartz 1.517ct loose Sale price¥12,800

Brazilian dumortierite in quartz 3.247ct loose Sale price¥25,800

Brazilian dumortierite in quartz 1.796ct loose Sale price¥15,800

Brazilian Dumortierite in Quartz 2.932ct loose Sale price¥25,800

KARATZ Custom Made

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.